Backplate for use with a scuba apparatus



FIG. 1 is a front view of a backplate for use with a scuba apparatus,showing my new design;

FIG. 2 is a right side view thereof, the left side being a mirror imagethereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a rear view thereof; and,

FIG. 5 is a top view thereof.

The ornamental design for a backplate for use with a scuba apparatus, asshown and described.